[SYNTAX] tr command

by **Christopher** Sun Mar 14, 2010 12:02 pm

Translate characters.

Syntax

-c	Complement the set of characters specified by string1.
-d	Delete all occurrences of input characters that are specified by string1.
-s	Replace instances of repeated characters with a single character.
string1	First string or character to be changed.
string2	Second string or character to change the string1.

Examples

Code:: $ cat 1.txt hi u der make hi files wonderful things computer windows hi hi make ubuntu files recover delete hi things computer computerjee $ tr -c '[a-k]\n' '@' < 1.txt hi@@@de@ @ake@hi@fi@e@@@@@de@f@@ @hi@g@@c@@@@@e@@@i@d@@@@hi hi@@ake@@b@@@@@fi@e@ @ec@@e@@de@e@e@hi@@hi@g@ c@@@@@e@ c@@@@@e@jee $ tr -d ' ' < 1.txt hiuder makehifileswonderful thingscomputerwindowshi himakeubuntufiles recoverdeletehithings computer computerjee $ tr -t '[a-z]' '[A-Z]' < 1.txt HI U DER MAKE HI FILES WONDERFUL THINGS COMPUTER WINDOWS HI HI MAKE UBUNTU FILES RECOVER DELETE HI THINGS COMPUTER COMPUTERJEE